The police use body cameras for real-time facial recognition of the policed [1]. It 100% has, and explicitly is, a negative effect. It was a right of center “reform” on the police that did nothing but further expand the power (and future of abuse of power) of our policing institutions.
[1] https://theintercept.com/2017/03/22/real-time-face-recogniti...
this doesn't improve safety it causes a feedback loop where the person targeted will struggle to move to a normal life.
What attitude is that exactly? Some semblance of a code of ethics? I think you are drastically underplaying the "random con" of a realtime facial recognition surveillance network of body and CCTV cameras.
People have to be confronted with the use cases of the technology they build prior to building it. Ignorance, naivety, and a post-hoc "I didn't know it would be use as such" is just ethical negligence.
This is a totally uncalled for generalization. That aside, most of the items you've listed work against the policies that police abolitionists are fighting for. Here's a good explanation: https://static1.squarespace.com/static/59ead8f9692ebee25b72f...